Everybody should a least have a Jazz bass !!! 
You dont have to sell me on Japan made Basses... they are some of my favorites. A jazz bass neck is just slimmer and more confortable for most user not use to playing on a P bass...I get by with an old Japanese P-bass copy in my jam room. Kind of the Kraft Dinner of bass guitars for rock/blues bands. I'd love a Jazz too, but if I could only have one ........ most bass players seem very comfortable on that P-bass.
If thats an old Univox, you got a great P bass !!!I got my Unicord P-bass copy for less than $100 about 40 years ago. And I nearly got fired for the opportunism. LOL